Latest version of org.specs2:specs2-gwt_2.12.0-M2
https://javadoc.io/doc/org.specs2/specs2-gwt_2.12.0-M2
Current version 3.6.4-20151016053644-0ca99ef
https://javadoc.io/doc/org.specs2/specs2-gwt_2.12.0-M2/3.6.4-20151016053644-0ca99ef
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/org.specs2/specs2-gwt_2.12.0-M2/3.6.4-20151016053644-0ca99ef/package-list